A road segment 5500 m long has an annual average daily traffic (AADT) of 8000 veh/day. The Safety Performance functions for injury, fatal, and property damage only(PDO) crashes developed from similar entities are: SPFatal = 0.3 * 10-6 (L) (AADT0.491) SPinjury = 1.602 * 10-6 (L)(AADT0.491) SPPDO = 3.811 10-6 (L)(AADT0.4⁹1) * Determine the following: Number of fatal crashes per year Number of injury crashes per year Number of property damage only crashes per year 1. 2. 3. Answers: 1. Number of fatal crashes per year = 2. Number of injury crashes per year = 3. Number of property damage only crashes per year

A road segment 5500 m long has an annual average daily traffic (AADT) of 8000 veh/day. The Safety Performance functions for injury, fatal, and property damage only(PDO) crashes developed from similar entities are: SPFatal = 0.3 * 10-6 (L) (AADT0.491) SPinjury = 1.602 * 10-6 (L)(AADT0.491) SPPDO = 3.811 10-6 (L)(AADT0.4⁹1) * Determine the following: Number of fatal crashes per year Number of injury crashes per year Number of property damage only crashes per year 1. 2. 3. Answers: 1. Number of fatal crashes per year = 2. Number of injury crashes per year = 3. Number of property damage only crashes per year

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter6: Fundamental Principles Of Traffic Flow

Section: Chapter Questions

Problem 23P

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